Package và import trong Go hoạt động thế nào?

Mỗi file Go thuộc 1 package (package main). main package + func main() = entry point.

• Import: import "fmt" hoặc grouped import.
• Exported names (public) viết hoa chữ cái đầu: fmt.Println.
• Lowercase = unexported (private trong package).

Every Go file belongs to one package (package main).

• The main package with func main() is the program entry point.
• Imports: import "fmt" or grouped imports.
• Exported (public) identifiers start with a capital letter: fmt.Println.
• Lowercase identifiers are unexported (package-private).